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ETRI journal v.18 no.4, 1997년, pp.229 - 244  

ATM Interface Technologies for an ATM Switching System

Park, Hong-Shik   (ATM Access Section, ETRI  ); Kwon, Yool   (ETRICC0186800  ); Kim, Young-Sup   (ATM Access Section, ETRI  ); Kang, Seok-Youl   (ATM Technology Department, ETRI  );
  • 초록

    Realization of the economical, reliable, and efficient ATM interface block becomes an important key to development of the ATM switching system when we consider new issues raised recently. In this paper, we summarize requirements for the ATM interface block and present the UNI (User Network Interface)/NNI (Network Node Interface) architecture to meet these requirements. We also evaluate the performance of the multiplexer adopting the various multiplexing schemes and service disciplines. For ATM UNI/NNI interface technologies, we have developed a new policing device using the priority encoding scheme. It can reduce the decision time for policing significantly. We have also designed a new spacer that can space out the clumped cell stream almost perfectly. This algorithm guarantees more than 99 % conformance to the negotiated peak cell rate. Finally, we propose the interface architecture for accommodation of the ABR (Available Bit Rate) transfer capability. The proposed structure that performs virtual source and virtual destination functions as well as a switch algorithm can efficiently accommodate the ABR service.


  • 참고문헌 (10)

    1. ITU-T recommendation G.782, Types and general characteristics of SDH multiplexing equipment , / v.,pp.,
    2. The spacercontroller: an efficient UPC/NPC for ATM networks , Boyer, P.;Sevel, M.;Guillemin, F. , Proceedings of ISS '92 / v.2,pp.316-320,
    3. Policing and spacing of multiplexed ATM traffic , Park, H.S.;Kim, J.K. , IEICE Trans.Commun. / v.E77-B,pp.1122-1132,
    4. Congestion control and traffic management in ATM networks: recent advances and a survey , Jain, R. , Computer Networks and ISDN Systems / v.,pp.,
    5. Performance evaluation of a cell reassembly mechanism with individual buffering in an ATM switching system , Park, K.M.;Kang, S.Y.;Han, C.M. , ETRI Journal / v.17,pp.23-36,
    6. ITU-T draft recommendation I.371, Traffic control and congestion control in B-ISDN , / v.,pp.,
    7. ATMU ser-Network Interface Specification , ATM Forum , / v.,pp.,
    8. A basic requirements for the policing function in ATM networks , Guillemin, F.;Dupuis, A. , Computer Networks and ISDN Systems / v.24,pp.311-320,
    9. ITU-T SG13 , TD73(P), Report of working party 2/13 , / v.,pp.,
    10. ITU-T SG13 , TD PL/11-97, Draft new ITU-T recommendation Q.2210 , / v.,pp.,

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